A purpose of this study is to identify an effect of nutrition education based on theory of multiplex intelligence for the students on the 3rd grade in Seoul. In order to attain this purpose, 25 students in control group and 28 students in experiment group were randomly selected from 28, December, 2012 to 30, January, 2013. A questionnaire and assessment paper on general characteristics, diet habit for the subjects, nutrition knowledge assesment (Ⅰ) of control group and experiment group before education, and nutrition knowledge assesment (Ⅱ) of control group and experiment group before and after education were written and analysis data was collected.

In statistic process for analysis data a frequency analysis was converted into percentage in order to the respondents'' general characteristics. To examine nutrition knowledge assesment(Ⅰ) of control group and experiment group before education, and nutrition knowledge assesment(Ⅱ) of control group and experiment group before and after education a significance was examined with chi-square test (x2). SPSS(Version 19.0) was used for the purposed of statistic process for analysis data. The results of this study are as follows.

1. Among 56 students there were 30 man students(53.6%) and 26 woman students. In a number of brother and sister, a single offspring was 37 students(66.0%), the students whose mothers have a job was 37(67.9%) and the students whose mothers have no job was 18(32.1%).
In meal potion "normal" was 23 students(41.1%), in a number of snack intake a day "twice" was 41 students(73.2%), in a number of eating-out "1 or 2 times a week" was 36 students(64.3%), in a kind of food at the time of eating-out "fast-food" was 28 students(50.0%), in a time of snack intake "between lunch and dinner" was 39 students(69.6%), and in a standard of choosing snack "mass media" was 31 students(55.4%).

2. In regard to the subjects'' level of nutrition knowledge before education a control group and experiment group statistically showed a significant difference in "food with a high nutrient value means the food with a high calory"(p<0.01), and there was no significant difference in rest of questions.

3. In the subjects'' assesment before and after education there was no significant difference in two groups after education about understanding of Calcium(p<0.05), desirable diet habit(p<0.001), food poisoning(p<0.05), and six nutrients(p<0.001). In an accurate rate there was no significant difference in control group and experiment group(p<0.001).

4. In assesment of the subjects'' average score before and after education there was no significant difference in an assesment paper before educating control group and experiment group but there was a significant difference in assesment point after education(p<0.001). There was the significant difference in score difference before and after education(p<0.01) and the experiment group showed a higher score than the control group.